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United States Patent | 5,527,113 |
Kembaiyan | June 18, 1996 |
The use of a sintered compact of a copper base alloy, a transition metal, a metalloid and a strengthener for bearing surfaces formed between roller cutter cones of sealed bearing rock bits.
Inventors: | Kembaiyan; K. T. (The Woodlands, TX) |
Assignee: | Smith International, Inc. (Houston, TX) |
Appl. No.: | 449565 |
Filed: | May 24, 1995 |
Current U.S. Class: | 384/93; 384/912 |
Intern'l Class: | F16C 033/06 |
Field of Search: | 384/93,92,95,96,912 |
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"Pfinodal, The Cost Saving High Performance Copper Alloy Strip" (1988, Ametek, Specialty Metal Products Division, Wallingford, Connecticut), Form 4M288. "Pfinodal, The Cost Saving High Performance Copper Alloy Strip, Technical Data" (1988, Ametek, Specialty Metal Products Division, Wallingford, Connecticut), form 3M88F. |